<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <title>斐波那契数列</title>
</head>
<body>
    <script>
       function fbnq(n){
           if (n==1||n==2){
               return 1;
           }else {
               return fbnq(n-1)+fbnq(n-2);
           }
       }
        console.log(fbnq(25));
    </script>
</body>
</html>